CVE-2026-34908Ubiquiti UniFi OS Improper Access Control Vulnerability
Known exploited — Ubiquiti UniFi OS Improper Access Control Vulnerability
CISA confirmed this vulnerability is used in real attacks on 23.06.2026. Remediation deadline for US federal agencies: 26.06.2026.
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-34908
Description
A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
References and patches
- https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34908 US Government Resource
- https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/ ExploitThird Party Advisory
CPE matches (NVD) (31)
cpe:2.3:a:ui:unifi_os_server:*:*:*:*:*:*:*:*< 5.0.8cpe:2.3:o:ui:unifi_cloud_gateway_industrial_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_machine_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_machine_pro_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_machine_special_edition_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_machine_pro_max_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:enterprise_fortress_gateway_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_wall_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_router_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_router_7_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_express_7_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_network_video_recorder_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_network_video_recorder_pro_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_network_video_recorder_instant_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:enterprise_network_video_recorder_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloud_gateway_ultra_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloud_gateway_max_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloud_gateway_fiber_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_router_5g_max_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:enterprise_network_video_recorder_core_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloud_key_plus_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloudkey_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_cloudkey_enterprise_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_network_video_recorder_g2_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_network_video_recorder_g2_pro_firmware:*:*:*:*:*:*:*:*< 5.1.12cpe:2.3:o:ui:unifi_dream_machine_beast_firmware:*:*:*:*:*:*:*:*< 5.1.11cpe:2.3:o:ui:unas_2_firmware:*:*:*:*:*:*:*:*< 5.1.10cpe:2.3:o:ui:unas_4_firmware:*:*:*:*:*:*:*:*< 5.1.10cpe:2.3:o:ui:unas_pro_firmware:*:*:*:*:*:*:*:*< 5.1.10cpe:2.3:o:ui:unas_pro_4_firmware:*:*:*:*:*:*:*:*< 5.1.10cpe:2.3:o:ui:unas_pro_8_firmware:*:*:*:*:*:*:*:*< 5.1.10